Automobile timing mechanism



H. L. SMITH I AUTOMOBILE, TIMING MECHANISM Sept. 25, 1923, r MMJSS Filed Jan. 7, 1922 2 Sheets-$heet 1 Sept. 25,1923. 9 3 5 H. LSMIITH V AUTOMOBILE TIMING mmcnmlsm Filed Jan. '7, 1922 2 Shegts-heet 2 INII/ENTOR' HLU X 311mm ?atented gent. 2t}, 1923.

HENEY LUNB SMITE GE PATERDBL N E177 JERSEY.

annonronrnn one.

a lication filed January '2, 1922.

To all whom may concern: 1

is it known that 'I, HENRY Juno Snrrrrr,

a citizen of the United fitates residing, at iaterson in the county of Pass'aie and State New Jersey, have invented certain new and useful i iproveinents in Automobile lvlecha Lisrns, of which the following:

a specification. The commutator. of, a Ford automobile motor is usually held retolubly against-an ht face of-t-he fixed motor vdc, which overlaps held to said structure by a stud projecting therefrom and a'nut on the s ud. There is no :neans to limit the rotation of the comator in the direction to advance the snarl:

V :hieln through a linlr, rotates the ita-tor and it this ll' boco' es bent et tled as it trequently does, the comatc will s and d splaced out of the extrenn i ,n to which it supposed to ii 1e solid member abuts its stop, The object of this invention is to pro vine n'leans for both holding; the con'imutarevolubljr againstrssidface of the fixed Let erstructure and limiting, directly its r tatire movement in one directiomas in the 7 direction to advance the spark of the motor,

the same to be simple in construction, reliable 111 operation and adapted to be up to any existing Ford automobile me- Figures 3 and 4: are views like Fig. 1,

illustrating two different modifications and q Fig. 5 1s a plan of What appears in Fig. 4.

a is the rotary connnutator arranged to bear against an upright face of the fixed structure 7) of the motor of a Ford automobile-and c is the link pivoted to the stud a of the commutator, by which the latter is connected to the aforesaid member (not shown) for turning the commutator. The said stud a forms a stop on the commutator,

has will appear.

structure by the commutator and he stop against which abuts the 'ieepi" egainst the face. of the the rotation thereof to advance the spark INC: IVIEGHANISM.

Serial No. EQLG'FS.

i :11 this stud 1 and under the nut-l setune the aforesaid means :t'or b'th holding the commutator revolubly against toe nienioned upright face of the structure F) and 'll'i'lng directly its rotati've mo sent in one direction, to Wit, in the direction to adv nce the spark. V

V ferring, first, to Figs. 1 and 2: Said is 'a plate in the fOfl'n of a bifurcated 7, one extension or finger f t which nt inward towrd the structure 1 and IS tree end out off square and lying in 7.1 -mo've1nent of the stop a of the tater and the other e" nsion or tinit Whieh is bent a from said the co:or'iututor hav- 7 whi h engages inthe h i d in the ou er face of? J connou 'ihe arm penetrated my the stud 5/" and held fixed by the nut screwed thereon. Thus the commutator i is directly determined, to Wit, by Contact 0 step c with the stop afforded by the free end of the ting-er oi? said arm fl any possible tendency of the arm to turn on d as an axis is in this case resi to. by me engagement of lug f in the socket of the commutator.

Referring to l 3: Here the arm is tormed'by two separate blades and I The blade 9 has its free end cut oil square and ranged in the path of movement oi": stop a. The other blade k overlaps the commutator and has a centering lug; Fa engaged in the socket in the outer face of the coinu'iutaton Bothblades are penetrated by stud (Z and held fixed by the nut c screwed thereon. Blade 9 is kept against possible tendency to turn on cl as an axis by llAVii upstanding); cheeks g between which blade 71 {its bk do h being kept against such turn ng by the en gagement of its lug h in the soc i of the commutator.

Referring to Figs. 42 and 5: Here the arm is again formed by two blades 2' and j. Blade 6 has its free end cut oil square and arranged in the path of movement of stop a. The

protrudes forwardly beside other blade j oyorlaps the commutator and has a centering lug 7" engaged in the socket in the outer face of the connnutator. Both blades are penetrated by stud (Z and held fixed by the nut e screwed thereon. Blade 1s kept against possible turning on cl as an axis by having a two-arm claw 2" which is bent around a projection 601 structure 6' l and'bears against the same.

By my inventionit is' only necessary to remove the usual blade which overlaps the commutator and holds the same against structure 6, being itself held by stud cl and 'nut e, and substltute the improved a which in any formthereof herein shown is extremely simple and-inexpensive to manufacture and very effectively performs the double service of keeping the commutator up to its bearing against said structure and properly centered and forming a stop directly lnnitmg'the rrotatlng movement of the connnuta-torin the direction to advance the spark.

Having thus fully described my invention;

What I claim as new and desire to secure by Letters Patent is 1. In combination, the fix ed momma;

2. In combination, the fixedmotor struc- V ture, a commutator revoluble aga-m'stan upright face thereof and having; a stop,secur- 111 means including a stud rigldly' g n'ojectfrom said face bGSiClG the commutator;

, and an arm held rigid by said means and penetratedby the stud and overlapp ng the commutator and holdingfith'e same against said faceai having a stoprin'the'path of inovementof the first stem In testimony whereof I my signature.

HENRYL D SMITH, V f 

